Charlie. For the hardware currently present I'd assume it will be fine with 3M and/or Sikaflex products ... as they haven't fallen off the boat or stopped working due to melting. If you buy something new just review the installation guide as it will note any incompatible bedding compound(s) - the manual for the Spinlock cleat was very clear on what could and couldn't be used. (Note: in this modern age sometimes you need to go online to collect the manual - what I needed to do for the Spinlock rope clutch.) I've used Sikaflex and 3M for Harken camcleats, winches and blocks with no problems. Please don't use silicone nor 3M5200 on the boat. (On a Montgomery/Sage there is ONE exception to the silicone rule.) :: Dave Scobie :: M6'8" #650 :: SV SWALLOW - sv-swallow.com :: former owner M17 #375 SWEET PEA - m17-375.com :: former owner M15 #288 SCRED - m15namedscred.wordpress.com <<-- new site! On Sun, Jun 13, 2021, 4:41 PM Charlie Fortner <charlie@rentrof.net> wrote:
On Sun, Jun 13, 2021, at 19:06, Dave Scobie wrote:
I've used butyl tape in rare circumstances when the hardware being bedded is chemically incompatible with Sikaflex or 3M.
Dave - you're a font of wrinkleboat knowledge. Thanks so much!
Is there a way to know the chemical compatibility? Are there particular plastics that are definitely incompatible?
Most of the hardware I'll be over-drilling / epoxying / re-drilling / re-bedding is some sort of plastic. Most of it is original to my 1988 M-15, but a I have a couple of more recent Harken cam cleats.
Charlie